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SCHEDULE 13D Filed 2026-05-19 Event 2026-05-12 SEC 0000921895-26-001441 →

Simcoe Capital Management, LLC Koppers Holdings Inc. KOP

Stake: 7.00% Shares: 1,349,005 CUSIP: 50060P106 Class: Common Stock

Item 4 — Purpose of Transaction

The Reporting Persons purchased the Shares based on the Reporting Persons' belief that the Shares, when purchased, were substantially undervalued. Depending upon overall market conditions, other investment opportunities available to the Reporting Persons, and the availability of Shares at prices that would make the purchase or sale of Shares desirable, the Reporting Persons may endeavor to increase or decrease their position in the Issuer through, among other things, the purchase or sale of Shares on the open market or in private transactions or otherwise, on such terms and at such times as the Reporting Persons may deem advisable. The Reporting Persons are supportive of management's current plan to increase the Issuer's profitability, the strong focus on free cash flow generation and the use of such funds to reduce debt and repurchase Shares. No Reporting Person has any present plan or proposal which would relate to or result in any of the matters set forth in subparagraphs (a) - (j) of Item 4 of Schedule 13D except as set forth herein or such as would occur upon or in connection with completion of, or following, any of the actions discussed herein. Depending on various factors including, without limitation, the Issuer's financial position, results and strategic direction, actions taken by the Issuer's management and Board of Directors (the "Board"), other investment opportunities available to the Reporting Persons, the price levels of the Shares, conditions in the securities markets and general economic and industry conditions, the Reporting Persons may in the future take such actions with respect to their investment in the Issuer as they deem appropriate including, without limitation, engaging in communications with the Issuer's management and Board, engaging in discussions with shareholders of the Issuer or other third parties about the Issuer and the Reporting Persons' investment, making recommendations or proposals to the Issuer concerning changes to the Issuer's operations, governance or capitalization, potential business combinations or dispositions involving the Issuer or certain of its businesses, or suggestions for improving the Issuer's financial and/or operational performance, acquiring additional Shares, disposing of some or all of their Shares, engaging in short selling of or any hedging or similar transaction with respect to the Shares, including swaps and other derivative instruments, or changing their intention with respect to any and all matters referred to in Item 4.

Cross-References

Insider Activity (last 365d)
0 transactions
0 buys · 0 sales · 0 awards/exercises
Issuer Cluster
1 13D/G filings on this issuer
0 other filings besides this one
Filer Track Record
5 filings by this filer
4 other filings in the data moat
Short Interest · settle 2026-04-30
DTC 6.26
861,708 shares short · +15.8% vs prior

Institutional Consensus · 2025-12-31

Held by elite portfolio managers
1 holder · $951K
Point72 Asset Mgmt

Other Filings by Simcoe Capital Management, LLC

FiledFormIssuerStakeShares
2023-11-07 SC Donnelley Financial Solutions, Inc. DFIN view →
2022-11-14 SC Donnelley Financial Solutions, Inc. DFIN view →
2019-12-02 SC Donnelley Financial Solutions, Inc. DFIN view →
2019-02-19 SC Donnelley Financial Solutions, Inc. DFIN view →

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